Magnetic Resonance ( MRI) Diffusion

1. Topic: Magnetic Resonance ( MRI) Diffusion
2. A)   Case Scenario:  You work in a radiology clinic and the radiologist has asked you to provide the clinic board with an analysis of diffusion weighted vs advanced diffusion techniques.  Currently the clinic’s MR system has the ability to do diffusion weighted imaging in either read, phase or slice directions.   They are considering purchasing additional software to do advanced diffusion imaging, which includes a diffusion tensor sequence with a Stejskal-Tanner scheme, plus calculation of Mean Diffusivity and FA, colour coded FA maps, orientation distribution functions and tractography.  Your report should include:

• Executive summary on the first page, with your recommendation and a brief reasoning as to why you’ve come to this conclusion .
• The main body of the report (less than 8 pages, not including references) which has

1. a brief introduction to diffusion imaging in MR (e.g. how it works etc), its should also consider basic aspects such as
   

   What happens during an MRI scan?

   During an MRI scan, you lie on a flat bed that’s moved into the scanner. Depending on the part of your body being scanned, you’ll be moved into the scanner either head first or feet first.

   The MRI scanner is operated by a radiographer, who is trained in carrying out imaging investigations. They control the scanner using a computer, which is in a different room, to keep it away from the magnetic field generated by the scanner.

2. What the proposed package does (ie what is DTI and ODF)
3. outline the pros and cons of the upgrade compared to what they already have
4. any training considerations for staff
5. implications for new areas of application in CNS and body imaging (if any)
6. Magnetic resonance imaging (MRI) is a type of scan that uses strong magnetic fields and radio waves to produce detailed images of the inside of the body.

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